The Securities and Exchange Commission curbed some bearish stock bets, ending a yearlong debate between individual investors and Wall Street with a solution that fails to satisfy anyone.

SEC commissioners voted 3 to 2 Wednesday to restrict short sales of a company's stock once it falls 10% from the previous day's closing price. When the 10% threshold is triggered, traders could only execute short sales for the stock at a price above the market's best bid. The curb would be in place through the following day.

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